A baseboard specification has three variables: size (height and thickness), style (profile), and durability (density and finish). Get all three right and the baseboard does its job for the life of the building.
Size is the most fundamental decision. A standard residential baseboard is 80 to 120 millimeters tall and 10 to 20 millimeters thick. A standard commercial baseboard is 100 to 150 millimeters tall and 15 to 25 millimeters thick. A high-end residential baseboard in a tall room can be 150 to 200 millimeters or more. The taller the baseboard, the more presence the floor line has, and the more the room reads as proportioned.
Style is the profile geometry. A flat baseboard is a simple rectangle, the most minimal option. A stepped baseboard has one or two steps on the upper edge. A cove baseboard has a small concave curve at the top. A molded baseboard has a full classical profile (cyma recta, ogee, torus) at the top, often with a small fillet and a return. The style choice is a design decision; the material choice is independent of it.
Durability comes from two factors. Density: the higher the density, the more impact-resistant and dimensionally stable the baseboard is. A 200+ kg/m³ PU baseboard is the right answer for most applications; a 300+ kg/m³ is the right answer for high-traffic commercial. Finish: pre-primed is the standard, pre-finished white is a small step up, and a custom color is a step further.
The other buying consideration is the corner treatment. A mitered outside corner is the standard; a pre-mitered corner from the factory is faster on site but requires accurate corner measurements in advance. Plinth blocks at the door are a separate purchase, and they simplify the baseboard corner because the baseboard butts into the block instead of mitering.
A practical buying checklist: profile (with a 1:1 drawing), dimensions (height, thickness, length), density (with a test method), finish (pre-primed, pre-finished white, custom color), minimum order quantity per profile, lead time, and the corner treatment. With this information, the factory can quote accurately and the spec is complete.
For commercial projects, the right approach is to send the spec to two or three factories and compare not just price but lead time, density specification, and finish options. The cheapest quote is not always the best value if the density is lower or the lead time is longer.
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Frequently Asked Questions
Q: What is a PU skirting board?
A: A PU skirting board (also called a baseboard) is a polyurethane molding installed at the floor-to-wall transition. It protects walls from scuffs and vacuum damage while delivering a clean architectural edge. PU skirting is waterproof, impact-resistant, and far lighter than the equivalent timber profile.
Q: How do you install Polyurethane baseboard buying guide?
A: Cut Polyurethane baseboard buying guide with a fine-tooth miter saw. Apply construction adhesive in a continuous bead along the back, press to the wall, and tack with finish nails into studs where possible. Mitre joints at inside and outside corners, fill with spackle, sand, and apply two coats of paint. PU skirting requires no sanding of the face — it arrives primed.
Q: Can PU skirting be used in wet areas?
A: Yes. PU skirting is fully waterproof and ideal for bathrooms, kitchens, and basements. Use a polyurethane adhesive (not water-based) and seal the bottom edge to the floor with a thin bead of clear silicone in wet zones to prevent mop water from wicking under the profile.
Q: What height skirting board should I choose?
A: Standard residential skirting heights are 60–100 mm (2.4–4 inches). For modern interiors, taller profiles (120–150 mm / 5–6 inches) deliver a more contemporary look and visually raise the perceived ceiling height. Heritage and Victorian restorations typically use 150–200 mm (6–8 inches) with a stepped or ogee profile.